14 February 2013 by Permi Krishna
Often Wi-Fi networks are easy to hack into when the network name and encryption keys are known. The MAC address filter however, prevents unauthorized access by performing an additional check on a different parameter to ensure greater security. The MAC (Media Access Control) address uniquely identifies each network interface to the physical network segment.
Most routers come with the Mac Address Filter, which is generally disabled; but to guarantee the best security it is best to have a router with the Mac address filter enabled.